<script lang="ts" setup name="XtxNumbox">
import { ref } from 'vue';
const props = defineProps({
   modelValue:{
    type:Number,
    default:1
  },
  min:{
    type:Number,
    default:1
  },
  max:{
    type:Number,
    default:20
  }
})
const emit = defineEmits<{
  (e:'update:modelValue',value:number ):void
}>()
const active = ref<'sub' | 'add' | ''>('')
const sub = () => {
  if(props.modelValue <= props.min) return
  emit('update:modelValue',props.modelValue - 1 )
  }
const add = () => {
  if(props.modelValue >= props.max) return
  emit('update:modelValue', props.modelValue + 1)
}
const handleChange = (e:Event) => {
    const element = e.target as HTMLInputElement
    // console.log(element.value)
    
}
</script>
<template>
  <div class="xtx-numbox">
    <div class="label">数量</div>
    <div class="numbox">
      <a href="javascript:;"  @click="sub" :class="{not:props.modelValue <= props.min}">-</a>
      <input type="text"  :value="modelValue" @change="handleChange"/>
      <a href="javascript:;"  @click="add" :class="{not:props.modelValue >= props.max}">+</a>
    </div>
  </div>
</template>

<style scoped lang="less">
.xtx-numbox {
  display: flex;
  align-items: center;
  .label {
    width: 60px;
    color: #999;
    padding-left: 10px;
  }
  .numbox {
    width: 120px;
    height: 30px;
    border: 1px solid #e4e4e4;
    display: flex;
    > a {
      width: 29px;
      line-height: 28px;
      text-align: center;
      background: #f8f8f8;
      font-size: 16px;
      color: #666;
      &:first-of-type {
        border-right: 1px solid #e4e4e4;
      }
      &:last-of-type {
        border-left: 1px solid #e4e4e4;
      }
      &.not {
        cursor: not-allowed;
      }
    }
    > input {
      width: 60px;
      padding: 0 5px;
      text-align: center;
      color: #666;
    }
  }
}
</style>
